From b2627110242e632df39b9d7e310111860a0c1990 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 30 Dec 2014 21:43:21 +0000
Subject: [PATCH] knifeblock: reverse knives in filter

---
 knifeblock-knives-filter | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/knifeblock-knives-filter b/knifeblock-knives-filter
index bb832cf..17cff74 100755
--- a/knifeblock-knives-filter
+++ b/knifeblock-knives-filter
@@ -14,7 +14,7 @@ my ($wknife,$wparts) = $want =~ m/^(\d)([a-z]+)$/ or die;
 
 sub want ($) {
     my ($colournum) = @_;
-    my $knife = ($colournum-1) % $nknives;
+    my $knife = $nknives-1 - ($colournum-1) % $nknives;
     return 0 unless $knife == $wknife;
     my $part = $part_order[ floor(($colournum-1) / $nknives) ];
     die "huh colour $colournum?" unless defined $part;
-- 
2.30.2